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Property and Equipment (Tables)
9 Months Ended
Sep. 30, 2017
Property Plant And Equipment [Abstract]  
Property and Equipment

Property and equipment consisted of the following at September 30, 2017 and December 31, 2016 (in thousands):

 

September 30,

 

 

December 31,

 

 

2017

 

 

2016

 

Equipment

$

7,882,765

 

 

$

6,809,129

 

Oil and natural gas properties

 

209,912

 

 

 

201,568

 

Buildings

 

186,452

 

 

 

97,029

 

Land

 

26,630

 

 

 

22,270

 

Total property and equipment

 

8,305,759

 

 

 

7,129,996

 

Less accumulated depreciation, depletion and impairment

 

(4,107,474

)

 

 

(3,721,033

)

Property and equipment, net

$

4,198,285

 

 

$

3,408,963